APA (7th ed.) Citation

National Air Pollution Control Administration. (1969). Air quality criteria for sulphur oxides. U.S. Dept. of Health, Education and Welfare.

Chicago Style (17th ed.) Citation

National Air Pollution Control Administration. Air Quality Criteria for Sulphur Oxides. Washington, D.C.: U.S. Dept. of Health, Education and Welfare, 1969.

MLA (9th ed.) Citation

National Air Pollution Control Administration. Air Quality Criteria for Sulphur Oxides. U.S. Dept. of Health, Education and Welfare, 1969.

Warning: These citations may not always be 100% accurate.